Instructions: Pick an object that will slide or roll on your desk or table. Give the object a fast push so that it slides/rolls off the table and becomes a horizontally projected projectile. Measure and record the vertical and horizontal displacements of the projectile. Discussion questions: 1. Using only the horizontal and vertical displacements. calculate the initial speed of the projectile as it left your desk. [2] 2. Calculate the velocity of the projectile just before it hit the ground. [2] 3. Calculate the new range of the projectile if it left your desk with the same speed and elevation but at a 23 degree angle above the horizontal. [4]